In a freshly set up pio project with ide=eclipse the Eclipse (version = Eclipse Neon) indexer does not find any C++11 templates, e.g.
std::unique_ptr<char[]> _mqttTopic;
is not indexed and marked as error “Symbol ‘unique_ptr’ could not be resolved.”
I already tried to add -std=C++11 to various indexer settings in the eclipse settings, but no success.
The problem "spreads’ over my sources, especially because it marks all occurences of the various C++11 pointers as error and does not index the calling function, e.g.
strcat_P(_mqttTopic.get(), topic);
is marked as error “Invalid arguments…” (for strcat_P) and “Method ‘get’ could not be resolved”.
pio should create an eclipse config file that is capable of indexing all file that pio can compile (c++11 is default).